{"id":1001,"date":"2016-04-05T20:11:21","date_gmt":"2016-04-05T20:11:21","guid":{"rendered":"http:\/\/newvista.cira.colostate.edu\/Improve\/?page_id=1001"},"modified":"2026-01-13T20:26:51","modified_gmt":"2026-01-13T20:26:51","slug":"final-report-whitex","status":"publish","type":"page","link":"https:\/\/vista.cira.colostate.edu\/Improve\/final-report-whitex\/","title":{"rendered":"Final Report – WHITEX"},"content":{"rendered":"\n

Winter Haze Intensive Tracer Experiment<\/p>\n\n\n\n

Principal Authors: William  Malm1<\/sup>, Kristi Gebhart1<\/sup>, Douglas Latimer2<\/sup>, Thomas Cahill3<\/sup>, Robert Eldred<\/b>3<\/sup>,<\/b><\/p>\n\n\n\n

Roger Pielke4<\/sup>, Roger Stocker4<\/sup>, John Watson5<\/sup><\/b><\/p>\n\n\n\n

Click on the title below to view PDF files of these documents:<\/p>\n\n\n\n

Cover Pages<\/strong><\/a><\/p>\n\n\n\n

Chapter 1 – Introduction<\/strong><\/a><\/p>\n\n\n\n

Chapter 2 – Air Quality Climatology of the WHITEX Study Area<\/strong><\/a><\/p>\n\n\n\n

Chapter 3 – Optical, Particulate, SO2 and CD4 Measurements<\/strong><\/a><\/p>\n\n\n\n

<\/p>\n\n\n\n

Chapter 4 – Discussion of Data<\/strong><\/summary>\n

4.1 – 4.2 Introduction and Temporal History of WHITEX Study Period<\/a><\/p>\n\n\n\n

4.3 Temporal History of CD4 at Receptors<\/a><\/p>\n\n\n\n

4.4 Statistical Summaries<\/a><\/p>\n\n\n\n

4.5 Temporal History of Meteorological Data<\/a><\/p>\n\n\n\n

4.6 Discussion of Data<\/a><\/p>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

Chapter 5 – Light Extinction Budgets<\/strong><\/summary>\n

5.1 Assumptions and Data Analysis<\/a><\/p>\n\n\n\n

5.2 Preliminary Data Analysis<\/a><\/p>\n\n\n\n

5.3 Light Extinction Budget By Extinction Type<\/a><\/p>\n\n\n\n

5.4 Extinction Budget By Species<\/a><\/p>\n\n\n\n

5.5 – 5.6 Time Variations in the Light Extinction Budget and Comparison to Previous Studies at Grand Canyon<\/a><\/p>\n\n\n\n

5.7 Summary<\/a><\/p>\n<\/details>\n\n\n\n

Chapter 6 – Attribution of Sulfur and Visibility Impairment<\/strong><\/summary>\n

6.1- 6.2 Introduction and Emissions<\/a><\/p>\n\n\n\n

6.3 Deposition and Transformation Rates<\/a><\/p>\n\n\n\n

6.4 Analysis of Meteorological Conditions<\/a><\/p>\n\n\n\n

6.5 Spatial and Temporal Trends in Sulfates<\/a><\/p>\n<\/details>\n\n\n\n

<\/p>\n\n\n\n

6.6 Assessment of Quantitative Attribution Techniques<\/strong><\/summary>\n

6.6.1 Tracer Mass Balance Regression <\/a><\/p>\n\n\n\n

6.6.2 Differential Mass Balance<\/a><\/p>\n\n\n\n

6.6.3 Chemical Mass Balance<\/a><\/p>\n\n\n\n

6.7 Attribution of Visibility Impairment<\/a><\/p>\n\n\n\n

Contents <\/a><\/p>\n\n\n\n

References<\/a><\/p>\n<\/details>\n\n\n\n

<\/p>\n\n\n\n

Chapter 7 – Deterministic Modeling (1977 kb)<\/a><\/strong><\/p>\n\n\n\n

Chapter 8 – Climate of Extreme Sulfur Episodes<\/strong><\/summary>\n

<\/p>\n\n\n\n

8.1 Introduction<\/a><\/p>\n\n\n\n

8.2 Extreme Sulfur Episodes During WHITEX<\/a><\/p>\n\n\n\n

8.3 Extreme Sulfur Events During November 1986 – March 1987<\/a><\/p>\n\n\n\n

8.4 – 8.6 High Sulfur Events During 1982 – 1986, Summary of Historic<\/a><\/p>\n\n\n\n

Episodes and Overall Summary and Conclusions<\/a><\/p>\n<\/details>\n\n\n\n

Historic Weather Maps<\/strong><\/summary>\n

1982<\/a><\/p>\n\n\n\n

1983<\/a><\/p>\n\n\n\n

1985<\/a><\/p>\n\n\n\n

February 1986<\/a><\/p>\n\n\n\n

March 1986<\/a><\/p>\n\n\n\n

October 1986<\/a><\/p>\n\n\n\n

November 1986<\/a><\/p>\n\n\n\n

December 1986<\/a><\/p>\n\n\n\n

1987<\/a><\/p>\n<\/details>\n\n\n\n

Chapter 9 – Summary and Conclusions<\/strong><\/a><\/p>\n\n\n\n

Appendices<\/strong><\/strong><\/summary>\n

3A Description of Sample Collection and Analysis<\/a><\/p>\n\n\n\n

3B Precision and Accuracy of CD4 and Measurement<\/a><\/p>\n\n\n\n

3C Internal Accuracy and Precision of Particulate Data<\/a><\/p>\n\n\n\n

3D Particulate Concentration Intercomparison<\/a><\/p>\n\n\n\n

3E Precision and Accuracy of SO2 Measurements and Intercomparisons<\/a><\/p>\n\n\n\n

3F Precision and Accuracy of Optical Measurements<\/a><\/p>\n\n\n\n

3G Regression Plots<\/a><\/p>\n\n\n\n

4A Disaggregation Procedures<\/a><\/p>\n\n\n\n

6A General Mass Balance Model<\/a><\/p>\n\n\n\n

6B Tracer Mass Balance Model Regression (TMBR) Model and Tracer Balance (TMB) Model<\/a><\/p>\n\n\n\n

6C Differential Mass Balance Model<\/a><\/p>\n\n\n\n

6D Chemical Mass Balance Receptor Model<\/a><\/p>\n\n\n\n

6E Wind Vectors (1617 kb)<\/a><\/p>\n\n\n\n

6F Upper Air Plots pages 1 – 20<\/a><\/p>\n\n\n\n

6F Upper Air Plots Pages 21- 40<\/a><\/p>\n\n\n\n

6F Upper Air Plots pages 41 – 61<\/a><\/p>\n\n\n\n

6G Trajectories<\/a><\/p>\n\n\n\n

6H Streaklines<\/a><\/p>\n\n\n\n

8A Daily Weather Maps – WHITEX Time Period<\/a><\/p>\n\n\n\n

8A Daily Weather Maps – Historic Weather Maps<\/a><\/p>\n\n\n\n

<\/p>\n<\/details>\n\n\n\n

Addendum<\/strong><\/strong><\/summary>\n

1.0 Review of the WHITEX Draft Report<\/a><\/p>\n\n\n\n

2.0 Contents<\/a><\/p>\n\n\n\n

2.1 Assumptions and Data Analysis Techniques<\/a><\/p>\n\n\n\n

2.2 Preliminary Data Analysis<\/a><\/p>\n\n\n\n

2.3 Light Extinction Budget by Extinction Type<\/a><\/p>\n\n\n\n

2.4 Extinction Budget by Species<\/a><\/p>\n\n\n\n

2.5 Time Variations in the Light Extinction Budget<\/a><\/p>\n\n\n\n

2.6 – 2.7 Comparison to Previous Studies at Grand Canyon and Summary<\/a><\/p>\n\n\n\n

3.0 Empirical Orthogonal Function Analysis of the Particulate Sulfate Concentrations Measured During WHITEX<\/a><\/p>\n\n\n\n

4 .0 Application of a Differential Mass Balance Model to Attribute Sulfate Haze in the Southwest<\/a><\/p>\n\n\n\n

5.0 Application of Tracer Mass Balance Regression to WHITEX Data<\/a><\/p>\n\n\n\n

6.0 Survey of a Variety of Receptor Modeling Techniques<\/a><\/p>\n\n\n\n

7.0 Relationship of Trends in Regional Sulfur Dioxide Emissions to ParticulateSulfate Concentrations in the Southwestern United States<\/a><\/p>\n<\/details>\n\n\n\n

<\/div>\n\n\n\n

1<\/sup>National Parks Service
2<\/sup>Latimer & Associates
3<\/sup>University of California
4<\/sup>Colorado State University
5<\/sup>Desert Research Institute<\/p>\n","protected":false},"excerpt":{"rendered":"

Winter Haze Intensive Tracer Experiment Principal Authors: William  Malm1, Kristi Gebhart1, Douglas Latimer2, Thomas Cahill3, Robert Eldred3, Roger Pielke4, Roger Stocker4, John Watson5 Click on the title below to view PDF files of these documents: Cover Pages Chapter 1 – Introduction Chapter 2 – Air Quality Climatology of the WHITEX Study Area Chapter 3 – […]<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-1001","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/pages\/1001","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/comments?post=1001"}],"version-history":[{"count":14,"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/pages\/1001\/revisions"}],"predecessor-version":[{"id":4789,"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/pages\/1001\/revisions\/4789"}],"wp:attachment":[{"href":"https:\/\/vista.cira.colostate.edu\/Improve\/wp-json\/wp\/v2\/media?parent=1001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}